You can do this by creating a chart using a terms aggregation of field provider on the x axis and the unique count / cardinality aggregation on the email field for the metric.
@flash1293 Thanks. I would like to create one more where when I select week timeframe, I want to get unique provider per day, not the whole week. Lets say
Monday: user@gmail.com - 20 occurences in this day
Tuesday: user@gmail.com - 10 occurences in this day
Wendsday: troll@gmail.com - 10 occurences in this day
So the total for gmail.com in one week is 3 unique occurences regardless user@gmail.com is same for Monday and Tuesday. How can I do that?
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